Bunding-solutions

Bunding solutions

Bunding (secondary containment) is a practical way to reduce the risk of leaks and spills reaching drains, waterways, floors and walkways. Whether you are storing oils, fuels, coolants, inks, solvents or process chemicals, the right bunding solution helps you control contamination, protect people, and demonstrate good housekeeping and compliance.

What bunding is designed to do

A bund is a physical barrier or containment area that captures liquid from a damaged container, dripping connection, overfill incident, or slow seep. In day-to-day operations it provides a controlled “catch zone” so you can respond quickly with absorbents and spill kits, instead of chasing contamination across the site.

Choosing the right bunding solution

Different risks call for different containment. The best approach is to match bund type to how you work, what you store, and where incidents are most likely to occur.

Portable bunding for temporary work – ideal for maintenance shutdowns, mobile plant, generator servicing, and short-term storage where you need fast deployment and easy clean-down. See our InstaBund Portable Bunding range.
IBC containment for bulk liquids – suitable where IBCs are stored, dispensed or staged. These solutions help manage high-volume leaks and drips around valves and taps. Browse IBC Containment.
Covered bunds and bunded pallets – useful where you want weather protection, controlled access, or cleaner storage areas for drums and IBCs. Explore Covered Bunds and Pallets.

Design considerations that matter on site

Good bunding is not just about “having a bund” – it is about making sure it works in real conditions. Before selecting equipment, consider:

Capacity and layout – plan for the maximum credible leak, the number of containers in the area, and how you will position containers so that the bund remains effective.
Compatibility – ensure bund materials are suitable for the liquids being stored (oils, fuels and many chemicals can require different containment materials).
Access and workflow – include space for safe handling, dispensing, and routine checks without creating trip hazards or blocked routes.
Drainage and rainwater – outdoor containment often needs a sensible approach to weather ingress and housekeeping so the bund does not become compromised.

For more detail, see our internal guidance on bund design guidelines and the wider overview of regulatory compliance.

Inspection and maintenance for effective bunding

To maintain the integrity of bunding systems, regular inspection and maintenance are essential. Mills should implement a routine check to identify any signs of wear, damage, or contamination. This should include assessing the structural integrity of the bunds, ensuring that drainage systems are functioning properly, and that the bund areas are free from debris that could hinder their effectiveness. Documentation of these inspections is vital for compliance with UK regulations, as outlined in the HSE’s guidance for managing safety in papermaking and paper mills.

For practical HSE resources for the paper sector, you may find these useful:

How bunding works with spill response

Bunding reduces the spread of liquid, but it does not replace spill response. The most effective setups pair containment with suitable absorbents and a clear response procedure, so staff can isolate, absorb, and dispose of waste correctly. If you are building a site-wide approach, consider combining bunding with documented inspection routines and clearly located spill kits for your main risk areas.

If you would like support choosing a bunding solution for your storage and process areas, start with the options above and match them to your typical containers and working practices.